Schumacher didn't use blue because he was making tonally anarchic movies that had only superficial design elements with with which to ally themselves with the earlier films in the franchise he was supposed to be continuing. In other words, rigid black muscle suits are about the only thing that BR has in common with B89.

That's what makes Nolan's repetition of the same design bizarre in his reboot. He should tried something different, to pronounce the novelty as clearly as possible.

A grey and blue fabric costume would be as different as possible from yet more black rubber.